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Macromolecule based metal powder flame-proof sound insulation felt

A polymer and base metal technology, applied in the field of polymer base metal powder flame retardant sound insulation felt, can solve the problems of complex production process, strong odor, poor physical properties, etc., and achieve the effect of good sound insulation performance

Inactive Publication Date: 2011-03-16
福建天盛恒达声学材料科技有限公司 +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the well-known organic metal powder sound insulation and flame retardant materials on the market use asphalt as an organic substance. This kind of sound insulation material using asphalt as the carrier of sound insulation material not only has strong odor, poor physical properties, but also complicated production process.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0013] A manufacturing example of the polymer-based metal powder flame-retardant sound-insulating felt of the present invention is:

[0014] 1. Prepare raw materials (by weight): 50% iron powder, 37% EVA, 0.1% silane coupling agent, 0.1% BHT, 0.8% polyvinyl vinegar, 2% flame retardant, and 10% calcium carbonate.

[0015] 2. Remove oxides and oil stains on the surface of iron powder: Put EVA into a high-speed mixer and heat up to 50°C while stirring, then put in iron powder and stir for 2 minutes.

[0016] 3. Mixing: Put the rest of the prepared raw materials into a high-speed mixer and mix them with EVA and iron powder for 2 minutes.

[0017] 4. Internal mixing: put the mixed raw materials into the internal mixer, and plasticize the EVA at a temperature of 140°C, and other raw materials are closely combined with the plasticized EVA carrier.

[0018] 5. Pelletizing: Put the mixed raw materials into twin-screw extruder and extrude them into granules.

[0019] 6. Calendering: T...

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PUM

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Abstract

The invention aims to provide a high molecular flame-resistant soundproof felt based on metal powder with good performance, non foreign taste and wide application range. The raw material adopts medical level iron powder with 200 mesh of fineness degree as soundproof material, high molecular and pure EVA as a soundproof material carrier, and silane coupling agent, antioxidant (BHT), lubricant (polyethylene vinegar), flame retardant and padding calcium carbonate as addition agent; the compounding ratio of the raw material (according to the weight ratio) is as follows: iron powder which occupies47.0 percent to 60.0 percent, EVA which occupies 33.2 percent to 39.2 percent, the silane coupling agent which occupies 0.1 percent to 0.2 percent, BHT which occupies 0.1 percent to 0.2 percent, the polyethylene vinegar which occupies 0.6 percent to 1.0 percent, flame retardant (BHT) which occupies 1.0 percent to 2.4 percent, and the calcium carbonate which occupies 5 percent to 10 percent. Through the experiment, the soundproof felt has the advantages of good soundproof performance (the soundproofing index Ia reaches 22 dB to 26 dB), good flame-resistance and uneasy cracking, and the soundproof felt can be widely applied in the fields of the building and the vehicle decorations, and the like.

Description

technical field [0001] The invention relates to a flame-retardant and sound-insulating material, in particular to a polymer-based metal powder flame-retardant and sound-insulating felt. Background technique [0002] At present, the well-known organic metal powder sound insulation and flame retardant materials on the market use asphalt as an organic substance. This kind of sound insulation material using asphalt as the carrier of sound insulation material not only has strong odor, poor physical properties, but also complicated production process. Contents of the invention [0003] The object of the present invention is to provide a high-molecular-based metal powder flame-retardant and sound-insulating felt with good performance, no peculiar smell and wide application range. [0004] The technical solution adopted by the present invention to solve the technical problem is: the raw material of the polymer-based metal powder flame-retardant sound-insulation felt is medical-gra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/08C08K5/54C08K5/13C08K3/26
Inventor 叶海宁
Owner 福建天盛恒达声学材料科技有限公司
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